JP5115149B2 - connector - Google Patents

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Publication number
JP5115149B2
JP5115149B2 JP2007286011A JP2007286011A JP5115149B2 JP 5115149 B2 JP5115149 B2 JP 5115149B2 JP 2007286011 A JP2007286011 A JP 2007286011A JP 2007286011 A JP2007286011 A JP 2007286011A JP 5115149 B2 JP5115149 B2 JP 5115149B2
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Japan
Prior art keywords
press
fitting
fit
tab
hole
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Expired - Fee Related
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JP2007286011A
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JP2009117064A (en
Inventor
貴志 外崎
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2007286011A priority Critical patent/JP5115149B2/en
Priority to EP08018752.9A priority patent/EP2056410B1/en
Priority to US12/262,347 priority patent/US7722413B2/en
Priority to KR1020080107586A priority patent/KR101038036B1/en
Priority to CN2008101704196A priority patent/CN101425639B/en
Publication of JP2009117064A publication Critical patent/JP2009117064A/en
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Publication of JP5115149B2 publication Critical patent/JP5115149B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets

Description

本発明は、コネクタに関するものである。   The present invention relates to a connector.

特許文献１には、合成樹脂製のハウジングの保持壁に貫通形態の圧入孔を形成し、圧入孔にタブ状端子を圧入したコネクタが開示されている。タブ状端子は、先端に位置する細長いタブ状接触部と、圧入孔よりも幅広であってタブ状接触部の後端に連なる圧入部とを有する。タブ状端子はタブ状接触部を先に向けて圧入孔に圧入され、圧入の過程では、圧入部が、圧入孔の幅を広げるように圧入孔の内壁部を変形させていく。
特開２００６−１９２２８号公報 Patent Document 1 discloses a connector in which a press-fitting hole having a penetrating shape is formed in a holding wall of a synthetic resin housing, and a tab-like terminal is press-fitted into the press-fitting hole. The tab-like terminal has an elongated tab-like contact portion located at the tip, and a press-fit portion that is wider than the press-fit hole and continues to the rear end of the tab-like contact portion. The tab-like terminal is press-fitted into the press-fitting hole with the tab-like contact portion facing forward, and in the press-fitting process, the press-fitting portion deforms the inner wall portion of the press-fitting hole so as to widen the press-fitting hole.
JP 2006-19228 A

この種のコネクタでは、変形させられる圧入孔の内壁側から圧入部に対して反力が作用し、この反力が圧入抵抗となるのであるが、上記従来のコネクタでは、圧入孔の幅寸法が全長に亘って一定であるため、圧入が開始されてから完了するまで一定の圧入抵抗が発生し続けることになる。ここで、圧入孔と圧入部の幅寸法の差を小さくして圧入抵抗を小さくすると、圧入が完了した状態においてタブ状端子を保持する力が低下することになるため、圧入抵抗を低減することはできない。したがって、従来では、圧入過程の開始から完了に至るまで、大きな圧入抵抗が発生し続けることは避けられなかった。
本発明は上記のような事情に基づいて完成されたものであって、タブ状端子を保持する力を低下させることなく、圧入抵抗を低減することを目的とする。 In this type of connector, a reaction force acts on the press-fit portion from the inner wall side of the press-fit hole to be deformed, and this reaction force becomes a press-fit resistance. However, in the conventional connector, the width dimension of the press-fit hole is Since it is constant over the entire length, a constant press-fitting resistance continues to be generated from the start of press-fitting until completion. Here, reducing the press-fit resistance by reducing the difference between the width dimension of the press-fit hole and the press-fit portion reduces the force for holding the tab-like terminal in the state where the press-fit is completed, so the press-fit resistance can be reduced. I can't. Therefore, in the past, it has been inevitable that a large press-fitting resistance continues to be generated from the start to the completion of the press-fitting process.
This invention is completed based on the above situations, Comprising: It aims at reducing press-fit resistance, without reducing the force holding a tab-shaped terminal.

上記の目的を達成するための手段として、請求項１の発明は、 前後方向の圧入孔を有する合成樹脂製のハウジングと、前端部に細長いタブ状接触部を有し、前記タブ状接触部の後端に前記圧入孔よりも幅広の圧入部が連なった形態のタブ状端子とを備え、前記タブ状端子が、前記圧入部を後方から前記圧入孔に圧入させることで、前記ハウジングに保持されているコネクタにおいて、前記圧入孔は、内壁面が前記圧入部によって拡幅変形させられる圧入領域を有しており、前記圧入領域は、その前端から後端に向かって次第に幅広となるようなテーパ状をなしており、前記圧入部の左右両側縁には、圧入方向に間隔を空けた複数対の略三角形状をなす突起が形成され、前記複数の突起は、前記圧入部の左右両側縁に沿って前記複数対の突起の突出端を結んだ線が、前方に向かって間隔が狭まるようなテーパ状の形態であり、前記複数対の突起の突出端同士を結んだ一対の線のなす角度は、前記圧入領域における左右両内側面のなす角度よりも大きく設定され、前記複数対の突起のうち最前端に位置する一対の突起の突出端間の幅寸法は、前記圧入領域における後端の最大幅寸法より大きい寸法とされているところに特徴を有する。 As a means for achieving the above object, the invention of claim 1 includes a housing made of a synthetic resin having a press-fitting hole in the front-rear direction, an elongated tab-like contact portion at a front end, and the tab-like contact portion. A tab-like terminal having a press-fit portion that is wider than the press-fit hole at the rear end, and the tab-like terminal is held in the housing by press-fitting the press-fit portion into the press-fit hole from the rear. In the connector, the press-fitting hole has a press-fitting region whose inner wall surface is widened and deformed by the press-fitting portion, and the press-fitting region is tapered so that it gradually becomes wider from the front end toward the rear end. The left and right side edges of the press-fitting part are formed with a plurality of pairs of substantially triangular projections spaced in the press-fitting direction, and the plurality of protrusions extend along the left and right side edges of the press-fitting part. Of the plurality of pairs of protrusions The line connecting the projecting ends has a tapered shape in which the interval narrows toward the front, and the angle formed by the pair of lines connecting the projecting ends of the plurality of pairs of protrusions is the left and right in the press-fitting region. The width dimension between the protruding ends of the pair of protrusions positioned at the front end among the plurality of pairs of protrusions is set to be larger than the maximum width dimension of the rear end in the press-fitting region. It has the characteristics in the place.

請求項２の発明は、請求項１に記載のものにおいて、前記ハウジングには、前記タブ状接触部を嵌合させることで前記タブ状接触部を幅方向において位置決め可能な位置決め孔が、前記圧入孔の前端に連なるように形成されているところに特徴を有する。   According to a second aspect of the present invention, in the first aspect of the present invention, the housing is provided with a positioning hole capable of positioning the tab-shaped contact portion in the width direction by fitting the tab-shaped contact portion into the housing. It is characterized by being formed so as to continue to the front end of the hole.

請求項３の発明は、請求項１または請求項２に記載のものにおいて、前記圧入部の前端部は、後方に向かって幅広となるような台形状に形成されており、前記圧入孔の後端の最大幅が、前記台形状の前端部の幅よりも小さい寸法とされているところに特徴を有する。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the front end portion of the press-fit portion is formed in a trapezoidal shape so as to be widened toward the rear, and the rear of the press-fit hole. It is characterized in that the maximum width of the end is smaller than the width of the trapezoidal front end.

請求項４の発明は、請求項１ないし請求項３のいずれかに記載のものにおいて、前記圧入部の前端部は、その左右両側縁が前方に向かって幅狭となるように傾斜した食い込み部となっており、前記圧入孔の前端部は、その左右両内側面が前方に向かって幅狭となるように傾斜した受け部となっており、前記食い込み部の左右両側縁のなす角度が、前記受け部の左右両内側面のなす角度よりも小さい角度とされているところに特徴を有する。   According to a fourth aspect of the present invention, the front end portion of the press-fitted portion according to any one of the first to third aspects is a biting portion inclined so that the left and right side edges thereof become narrower toward the front. The front end portion of the press-fitting hole is a receiving portion that is slanted so that the left and right inner surfaces are narrower toward the front, and the angle formed by the left and right side edges of the biting portion is It is characterized in that the angle is smaller than the angle formed by the left and right inner surfaces of the receiving portion.

＜請求項１の発明＞
圧入領域は、前端から後端に向かって次第に幅広となるようなテーパ状をなしているので、圧入領域の前端部においては、圧入領域の幅と圧入部の幅との寸法差が大きく確保され、タブ状端子を確実にハウジングに保持することができる。一方、圧入領域の後端部においては、圧入領域の幅と圧入部の幅との寸法差が小さいので、圧入過程の初期における圧入抵抗を低減することができる。
また、圧入されたタブ状端子は、複数の突起が圧入孔の内側面に食い込むので、確実に抜止めされる。さらに、突起を有する圧入部は、全体として前端側が幅狭となるようなテーパ状をなしているので、圧入初期における圧入抵抗が低減される。 <Invention of Claim 1>
Since the press-fit region is tapered so as to gradually increase from the front end toward the rear end, a large dimensional difference between the width of the press-fit region and the width of the press-fit portion is ensured at the front end of the press-fit region. The tab-like terminal can be securely held in the housing. On the other hand, since the dimensional difference between the width of the press-fitted region and the width of the press-fitted portion is small at the rear end portion of the press-fitted region, it is possible to reduce the press-fitting resistance at the initial stage of the press-fitted process.
In addition, since the plurality of protrusions bite into the inner surface of the press-fitting hole, the tab-like terminal that has been press-fitted can be securely removed. Furthermore, since the press-fit portion having the protrusion is tapered so that the front end side becomes narrow as a whole, the press-fit resistance in the initial press-fit is reduced.

＜請求項２の発明＞
タブ状接触部は、位置決め孔により幅方向において位置決めされるので、タブ状端子をハウジングに対して正しい位置に取り付けることができる。 <Invention of Claim 2>
Since the tab-shaped contact portion is positioned in the width direction by the positioning hole, the tab-shaped terminal can be attached to the housing at the correct position.

＜請求項３の発明＞
圧入開始時には、台形状部分の傾斜した側縁が圧入孔の開口縁に当たるので、この側縁の傾斜によって圧入抵抗が緩和される。 <Invention of Claim 3>
At the start of press-fitting, since the inclined side edge of the trapezoidal portion hits the opening edge of the press-fitting hole, the press-fitting resistance is relieved by the inclination of the side edge.

＜請求項４の発明＞
圧入が完了した状態では、食い込み部が受け部に対して食い込むようになるので、この食い込み作用によってタブ状端子は、より確実に保持される。 <Invention of Claim 4>
In the state where the press-fitting is completed, the biting portion bites into the receiving portion, so that the tab-like terminal is more reliably held by this biting action.

＜実施形態１＞
以下、本発明を具体化した実施形態１を図１乃至図８を参照して説明する。本実施形態のコネクタは、ハウジング１０に複数のタブ状端子２０を取り付けて構成される。
ハウジング１０は、合成樹脂製であり、タブ状端子２０を貫通させた状態で保持するための保持壁１１を有する。保持壁１１には、保持壁１１の前面１１Ｆから後面１１Ｒまで前後方向に貫通した形態の複数の保持孔１２が形成されている。保持孔１２は、保持壁１１の前面１１Ｆに開口する前面側凹部１３と、保持壁１１の後面１１Ｒに開口する後面側凹部１４と、前面側凹部１３の奥端面（後端）から後方へ切欠した形態の位置決め孔１５と、位置決め孔１５の奥端面（後端）から後面側凹部１４の前端面に至る前後方向の圧入孔１６とから構成されている。この保持孔１２は、保持孔１２に対するタブ状端子２０の挿入方向（前後方向）と平行な線に関して左右対称な形状であり、且つ上下対称な形状となっている。 <Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The connector of this embodiment is configured by attaching a plurality of tab-like terminals 20 to the housing 10.
The housing 10 is made of synthetic resin, and has a holding wall 11 for holding the tab-like terminal 20 in a state where it is penetrated. The holding wall 11 is formed with a plurality of holding holes 12 having a shape penetrating in the front-rear direction from the front surface 11F to the rear surface 11R of the holding wall 11. The holding hole 12 is notched backward from the front-side recess 13 that opens to the front surface 11F of the holding wall 11, the rear-side recess 14 that opens to the rear surface 11R of the holding wall 11, and the back end surface (rear end) of the front-side recess 13. The positioning hole 15 having the above-described configuration and the press-fitting hole 16 in the front-rear direction extending from the back end surface (rear end) of the positioning hole 15 to the front end surface of the rear-side concave portion 14 are configured. The holding hole 12 has a symmetrical shape with respect to a line parallel to the insertion direction (front-rear direction) of the tab-like terminal 20 with respect to the holding hole 12 and has a vertically symmetrical shape.

前面側凹部１３の保持孔１２に対するタブ状端子２０の圧入方向と直角な断面形状（以下、単に断面形状という）は、正方形である。位置決め孔１５の断面形状は、前面側凹部１３と中心が同じであって、前面側凹部１３よりも小さい正方形である。後面側凹部１４の断面形状は、横長の長方形をなし、後面側凹部１４の内面は、後方に向かって拡がるようなテーパ状をなしている。後面側凹部１４の最小上下寸法（前端の寸法）は、位置決め孔１５の上下寸法と同じである。また、後面側凹部１４の最小左右寸法（前端の寸法）は、位置決め孔１５の左右寸法よりも大きい。   A cross-sectional shape (hereinafter simply referred to as a cross-sectional shape) perpendicular to the press-fitting direction of the tab-like terminal 20 with respect to the holding hole 12 of the front-side concave portion 13 is a square. The cross-sectional shape of the positioning hole 15 is the same as that of the front recess 13 and is a square smaller than the front recess 13. The cross-sectional shape of the rear surface side concave portion 14 is a horizontally long rectangle, and the inner surface of the rear surface side concave portion 14 is tapered so as to expand rearward. The minimum vertical dimension (the dimension of the front end) of the rear surface side recess 14 is the same as the vertical dimension of the positioning hole 15. In addition, the minimum left and right dimension (front end dimension) of the rear surface side recess 14 is larger than the left and right dimension of the positioning hole 15.

圧入孔１６の断面形状は、横長の方形をなし、その上下寸法は、位置決め孔１５と同じ寸法であり、圧入孔１６の上面と下面は、夫々、位置決め孔１５の上面と下面に対して面一状に連なっている。圧入孔１６の前端部は、その左右両内側面が前方に向かって次第に幅狭となるように傾斜した受け部１７となっており、この受け部１７における左右両側面のなす角度θａは９０°に近い角度（例えば、８０°程度）となっている。そして、受け部１７の左右両内側面の前端は、位置決め孔１５の内側面の後端に対して鈍角をなして連なっている。   The cross-sectional shape of the press-fitting hole 16 is a horizontally long square, the vertical dimension thereof is the same as that of the positioning hole 15, and the upper surface and the lower surface of the press-fitting hole 16 face the upper surface and the lower surface of the positioning hole 15, respectively. It is in a line. The front end portion of the press-fitting hole 16 is a receiving portion 17 that is inclined so that both left and right inner surfaces gradually narrow toward the front, and an angle θa formed by the left and right side surfaces of the receiving portion 17 is 90 °. The angle is close to (for example, about 80 °). The front ends of the left and right inner surfaces of the receiving portion 17 are connected to the rear end of the inner surface of the positioning hole 15 at an obtuse angle.

圧入孔１６における受け部１７よりも後方の圧入領域１８（圧入孔１６の大部分を占める領域）においては、左右両内側面は、互いに平行ではなく、その前端から後端に向かって次第に幅広となるようなテーパ状をなしている。この圧入領域１８における左右両内側面のなす角度θｂは、受け部１７の内側面のなす角度θａよりも小さく、約２°程度である。圧入領域１８の両内側面の前端は、受け部１７の内側面の後端に対して鈍角状に連なる。圧入領域１８の両内側面の後端は、後面側凹部１４の前面（奥端面）に対して９０°に近い鈍角をなして連なる。尚、後面側凹部１４の前面は、保持孔１２に対するタブ状端子２０の圧入方向（前後方向）と直角な平面である。また、圧入領域１８の後端の幅寸法Ｗａ（つまり、圧入孔１６における最大幅寸法）は、後面側凹部１４の最小幅よりも小さい寸法である。そして、後面側凹部１４の前面はストッパ１９となっている。   In the press-fitting region 18 (the region occupying most of the press-fitting hole 16) behind the receiving portion 17 in the press-fitting hole 16, the left and right inner surfaces are not parallel to each other and gradually become wider from the front end toward the rear end. It has a tapered shape. The angle θb formed by the left and right inner surfaces in the press-fitted region 18 is smaller than the angle θa formed by the inner surface of the receiving portion 17 and is about 2 °. The front ends of both inner side surfaces of the press-fit region 18 are connected to the rear end of the inner side surface of the receiving portion 17 in an obtuse angle. The rear ends of both inner side surfaces of the press-fitting region 18 are connected at an obtuse angle close to 90 ° with respect to the front surface (back end surface) of the rear surface side concave portion 14. In addition, the front surface of the rear side concave portion 14 is a plane perpendicular to the press-fitting direction (front-rear direction) of the tab-like terminal 20 with respect to the holding hole 12. In addition, the width dimension Wa of the rear end of the press-fitting region 18 (that is, the maximum width dimension in the press-fitting hole 16) is smaller than the minimum width of the rear-side concave portion 14. The front surface of the rear side recess 14 is a stopper 19.

タブ状端子２０は、金属板材を所定形状に打ち抜いたものであり、圧入部２１と、圧入部２１の前端から前方へ延びるタブ状接触部２２と、圧入部２１の後端から後方へ延びる前止まり部２３と、前止まり部２３の後端から後方へ延びる基板接続部２４とから構成されている。タブ状端子２０は、保持孔１２に対する圧入方向と平行な前後方向線に関して左右対称であり、且つ基板接続部２４が屈曲されない状態において上下対称である。圧入部２１とタブ状接触部２２と前止まり部２３は、その上面同士及び下面同士が面一状に連なる形態であり、これらの厚さ寸法は同じである。   The tab-shaped terminal 20 is obtained by punching a metal plate into a predetermined shape, and includes a press-fit portion 21, a tab-shaped contact portion 22 that extends forward from the front end of the press-fit portion 21, and a front that extends rearward from the rear end of the press-fit portion 21. The stop portion 23 and the board connecting portion 24 extending rearward from the rear end of the front stop portion 23 are configured. The tab-like terminals 20 are symmetric with respect to the front-rear direction line parallel to the press-fitting direction with respect to the holding hole 12, and are vertically symmetric in a state where the board connecting portion 24 is not bent. The press-fit portion 21, the tab-like contact portion 22, and the front stop portion 23 are in a form in which the upper surfaces and the lower surfaces thereof are connected in a flush manner, and the thickness dimensions thereof are the same.

タブ状接触部２２は、圧入方向と直角な断面が正方形であり、その上下寸法（＝左右寸法）は、位置決め孔１５と同じかそれよりも僅かに小さい寸法となっている。前止まり部２３は方形をなし、その前端縁は圧入方向と直角をなしている。基板接続部２４は、図示は省略するが、Ｌ字形に屈曲され、回路基板（図示せず）に対しそのスルーホールに差し込まれた状態で接続される周知形態のものである。   The tab-like contact portion 22 has a square cross section perpendicular to the press-fitting direction, and its vertical dimension (= left-right dimension) is the same as or slightly smaller than the positioning hole 15. The front stop 23 has a square shape, and the front edge thereof is perpendicular to the press-fitting direction. Although not shown, the board connecting portion 24 is of a well-known form that is bent in an L shape and is connected to a circuit board (not shown) while being inserted into the through hole.

圧入部２１は、上下寸法がタブ状接触部２２と同じである。圧入部２１の左右寸法は、タブ状接触部２２よりも大きく、前止まり部２３よりも小さい。圧入部２１の左右両側縁には、夫々、第１〜第３の３つずつの突起２５Ａ，２５Ｂ，２５Ｃが圧入方向に間隔を空けて形成されている。突起２５Ａ，２５Ｂ，２５Ｃは、圧入方向に対して傾斜したテーパ状縁部２６Ａ，２６Ｂ，２６Ｃと、圧入方向と略直角に近い向きの係止縁部２７Ａ，２７Ｂ，２７Ｃとを有し、略三角形状をなす。   The press-fit portion 21 has the same vertical dimension as the tab-like contact portion 22. The left and right dimensions of the press-fit portion 21 are larger than the tab-like contact portion 22 and smaller than the front stop portion 23. On the left and right side edges of the press-fit portion 21, three first to third protrusions 25A, 25B, and 25C are formed at intervals in the press-fit direction. The protrusions 25A, 25B, and 25C have tapered edge portions 26A, 26B, and 26C that are inclined with respect to the press-fitting direction, and locking edge portions 27A, 27B, and 27C that are oriented almost at right angles to the press-fitting direction. Triangular shape.

図４に示すように、第１突起２５Ａのテーパ状縁部２６Ａの圧入方向に対する傾斜角度θｃは、第２突起２５Ｂ及び第３突起２５Ｃテーパ状縁部２６Ｂ，２６Ｃの圧入方向に対する傾斜角度θｄ，θｅよりも小さく、約１０°の角度である。また、第２突起２５Ｂのテーパ状縁部２６Ｂの傾斜角度θｄと第３突起２５Ｃのテーパ状縁部２６Ｃの傾斜角度θｅとは同じ角度である。   As shown in FIG. 4, the inclination angle θc of the first protrusion 25A with respect to the press-fitting direction of the tapered edge 26A is equal to the inclination angle θd of the second protrusion 25B and the third protrusion 25C with respect to the press-fitting direction of the tapered edges 26B and 26C. The angle is smaller than θe and about 10 °. Further, the inclination angle θd of the tapered edge portion 26B of the second protrusion 25B and the inclination angle θe of the tapered edge portion 26C of the third protrusion 25C are the same angle.

また、各突起２５Ａ，２５Ｂ，２５Ｃの係止縁部２７Ａ，２７Ｂ，２７Ｃの圧入方向に対する角度については、互いに異なる角度となっている。最も前に位置する第１突起２５Ａの係止縁部２７Ａは、テーパ状縁部２６Ａと約９０°の角度をなし、中央に位置する第２突起２５Ｂでは、係止縁部２７Ｂとテーパ状縁部２６Ｂとのなす角度が第１突起２５Ａよりも小さく、最も後に位置する第３突起２５Ｃでは、係止縁部２７Ｃとテーパ状縁部２６Ｃとのなす角度が最も小さい。そして、この第３突起２５Ｃの係止縁部２７Ｃは、圧入方向に対して最も直角に近い角度となっている。   The angles of the protrusions 25A, 25B, and 25C with respect to the press-fitting directions of the locking edge portions 27A, 27B, and 27C are different from each other. The locking edge 27A of the first protrusion 25A located at the forefront forms an angle of about 90 ° with the taper edge 26A, and the locking protrusion 27B and the taper edge of the second protrusion 25B positioned at the center. The angle formed with the portion 26B is smaller than that of the first protrusion 25A, and the angle formed between the locking edge portion 27C and the tapered edge portion 26C is the smallest in the third protrusion 25C located at the rearmost position. The locking edge portion 27C of the third protrusion 25C is at an angle closest to the right angle with respect to the press-fitting direction.

また、図５に示すように、圧入部２１の左右両側縁に沿って三対の突起２５Ａ，２５Ｂ，２５Ｃの突出端を結んだ線は、前方に向かって間隔が狭まるようなテーパ状の形態となっている。この突起２５Ａ，２５Ｂ，２５Ｃの突出端同士を結んだ一対の線のなす角度θｆは、圧入孔１６の圧入領域１８における左右両内側面のなす角度θｂよりも大きい。換言すると、圧入方向に対する傾斜角度は、突起２５Ａ，２５Ｂ，２５Ｃの突出端を結んだ線の方が、圧入領域１８の内側面よりも大きい。   Further, as shown in FIG. 5, the line connecting the protruding ends of the three pairs of protrusions 25A, 25B, and 25C along the left and right side edges of the press-fit portion 21 has a tapered shape in which the interval is narrowed toward the front. It has become. An angle θf formed by a pair of lines connecting the protruding ends of the protrusions 25A, 25B, and 25C is larger than an angle θb formed by the left and right inner side surfaces in the press-fitting region 18 of the press-fitting hole 16. In other words, the inclination angle with respect to the press-fitting direction is larger on the line connecting the projecting ends of the protrusions 25 </ b> A, 25 </ b> B, and 25 </ b> C than the inner surface of the press-fitting region 18.

圧入部２１の前端部は、一対の第１突起２５Ａによって台形状をなす食い込み部２８となっており、この食い込み部２８における最大幅寸法Ｗｂ（第１突起２５Ａの突出端間の距離）は、圧入孔１６の最大幅寸法Ｗａ（後端の左右寸法）よりも大きい寸法とされている。この食い込み部２８の一対のテーパ状縁部２６Ａのなす角度２×θｃは、受け部１７の左右両側面のなす角度θａよりも小さい角度となっている。また、食い込み部２８のテーパ状縁部２６Ａの前端は、タブ状接触部２２の後端の側縁に対して鈍角をなして連なっている。   The front end portion of the press-fit portion 21 is a biting portion 28 having a trapezoidal shape by the pair of first protrusions 25A, and the maximum width dimension Wb (distance between the protruding ends of the first protrusion 25A) in the biting portion 28 is The maximum width dimension Wa (the left and right dimensions of the rear end) of the press-fitting hole 16 is larger. The angle 2 × θc formed by the pair of tapered edge portions 26A of the biting portion 28 is smaller than the angle θa formed by the left and right side surfaces of the receiving portion 17. Further, the front end of the tapered edge portion 26 </ b> A of the biting portion 28 is connected to the side edge of the rear end of the tab-shaped contact portion 22 at an obtuse angle.

次に、本実施形態の作用を説明する。
タブ状端子２０をハウジング１０に取り付ける際には、後方からタブ状接触部２２を先に向けてタブ状端子２０を保持孔１２に差し込む。タブ状接触部２２は、圧入孔１６を貫通して位置決め孔１５に嵌入される。この位置決め孔１５への嵌入により、タブ状接触部２２は、上下方向及び左右方向への相対移動を規制される。タブ状接触部２２が位置決め孔１５への嵌入を開始した時点では、圧入部２１は保持孔１２よりも後方に位置する。 Next, the operation of this embodiment will be described.
When attaching the tab-shaped terminal 20 to the housing 10, the tab-shaped terminal 20 is inserted into the holding hole 12 with the tab-shaped contact portion 22 facing forward from the rear. The tab-shaped contact portion 22 is inserted into the positioning hole 15 through the press-fitting hole 16. By fitting into the positioning hole 15, the tab-like contact portion 22 is restricted from relative movement in the vertical direction and the horizontal direction. When the tab-like contact portion 22 starts to be inserted into the positioning hole 15, the press-fit portion 21 is located behind the holding hole 12.

この状態からタブ状端子２０の差込みを続けると、図５に示すように、タブ状接触部２２が位置決め孔１５に嵌入した状態のままで、圧入部２１の台形状をなす食い込み部２８の左右両第１突起２５Ａのテーパ状縁部２６Ａが、圧入領域１８の後端の開口縁に当接する。この第１突起２５Ａの当接により、タブ状端子２０が左右方向において姿勢を矯正され、正規の圧入方向を向くことになる。この状態からタブ状端子２０に押込力を付与すると、圧入部２１が圧入孔１６内に圧入される。圧入の過程では、図６に示すように、第１突起２５Ａが、圧入領域１８の左右両内側壁を拡幅変形させながら、圧入孔１６の奥方（前方）へ進む。次いで、第２突起２５Ｂが、圧入孔１６内に進入し、圧入領域１８の内側面をさらに拡幅変形させながら前進する。更に、第３突起２５Ｃも同様に圧入領域１８の内側面を拡幅変形させながら、圧入していく。   If the insertion of the tab-like terminal 20 is continued from this state, the left and right sides of the biting portion 28 that forms the trapezoidal shape of the press-fit portion 21 while the tab-like contact portion 22 is fitted in the positioning hole 15 as shown in FIG. The tapered edge portions 26 </ b> A of the first protrusions 25 </ b> A are in contact with the opening edge of the rear end of the press-fitting region 18. The contact of the first protrusion 25A corrects the posture of the tab-like terminal 20 in the left-right direction and faces the normal press-fitting direction. When a pressing force is applied to the tab-like terminal 20 from this state, the press-fit portion 21 is press-fitted into the press-fit hole 16. In the process of press-fitting, as shown in FIG. 6, the first protrusion 25 </ b> A advances toward the back (front) of the press-fitting hole 16 while widening and deforming the left and right inner side walls of the press-fitting region 18. Next, the second protrusion 25 </ b> B enters the press-fitting hole 16 and advances while further expanding the inner side surface of the press-fitting region 18. Further, the third protrusion 25C is also press-fitted while the inner side surface of the press-fitting region 18 is widened and deformed.

そして、タブ状端子２０が正規の圧入位置に到達すると、図７に示すように、前止まり部２３が後面側凹部１４のストッパ１９（奥端面）に突き当たることにより、それ以上のタブ状端子２０の圧入動作が規制されるとともに、突起２５Ａ，２５Ｂ，２５Ｃが圧入孔１６の内壁に食い込むことによりタブ状端子２０の戻りが規制される。また、食い込み部２８の前端部が受け部１７の前端部内側面及び位置決め孔１５の後端側開口縁に食い込む状態となる。   When the tab-like terminal 20 reaches the normal press-fitting position, as shown in FIG. 7, the front stop 23 abuts against the stopper 19 (back end face) of the rear-side concave portion 14, thereby further tab-like terminals 20. The press-fitting operation of the tab-like terminal 20 is restricted by the protrusions 25A, 25B, and 25C biting into the inner wall of the press-fitting hole 16. Further, the front end portion of the biting portion 28 bites into the inner surface of the front end portion of the receiving portion 17 and the rear end side opening edge of the positioning hole 15.

上述のように本実施形態においては、圧入孔１６が、前端から後端に向かって次第に幅広となるようなテーパ状をなしているので、圧入孔１６の前端部においては、圧入孔１６の幅と圧入部２１の幅との寸法差が大きく確保され、タブ状端子２０を確実にハウジング１０に保持することができる。一方、圧入孔１６の後端部においては、圧入孔１６の幅と圧入部２１の幅との寸法差が小さいので、圧入過程の初期における圧入抵抗を低減することができる。   As described above, in the present embodiment, the press-fitting hole 16 has a taper shape that becomes gradually wider from the front end toward the rear end, so that the width of the press-fitting hole 16 is at the front end of the press-fitting hole 16. A large dimensional difference between the width of the press-fit portion 21 is ensured, and the tab-like terminal 20 can be securely held in the housing 10. On the other hand, since the dimensional difference between the width of the press-fit hole 16 and the width of the press-fit portion 21 is small at the rear end portion of the press-fit hole 16, the press-fit resistance at the initial stage of the press-fit process can be reduced.

また、タブ状接触部２２は、位置決め孔１５により幅方向において位置決めされるので、タブ状端子２０をハウジング１０に対して正しい位置に取り付けることができる。
また、圧入部２１の前端部は、後方に向かって幅広となるような台形状の食い込み部２８となっており、圧入孔１６の後端の最大幅Ｗａが、台形状の食い込み部２８の幅Ｗｂよりも小さい寸法とされている。かかる構成としたことにより、圧入開始時には、台形状の食い込み部２８の傾斜したテーパ状縁部２６Ａが圧入孔１６の開口縁に当たることになり、これにより、このテーパ状縁部２６Ａの傾斜によって圧入抵抗が緩和される。 Further, since the tab-shaped contact portion 22 is positioned in the width direction by the positioning hole 15, the tab-shaped terminal 20 can be attached to the housing 10 at a correct position.
Further, the front end portion of the press-fit portion 21 is a trapezoidal biting portion 28 that becomes wider toward the rear, and the maximum width Wa of the rear end of the press-fit hole 16 is the width of the trapezoidal bite portion 28. The dimensions are smaller than Wb. With this configuration, at the start of press-fitting, the inclined tapered edge portion 26A of the trapezoidal bite portion 28 abuts on the opening edge of the press-fitting hole 16, so that the press-fitting is performed by the inclination of the tapered edge portion 26A. Resistance is relaxed.

また、圧入部２１の前端部を、その左右両側縁が前方に向かって幅狭となるように傾斜した食い込み部２８とした上で、圧入孔１６の前端部を、その左右両内側面が前方に向かって幅狭となるように傾斜した受け部１７とし、食い込み部２８の左右両側縁（テーパ状縁部２６Ａ）のなす角度が、受け部１７の左右両内側面のなす角度よりも小さい角度としている。この構成によれば、圧入が完了した状態で、食い込み部２８が受け部１７に対して食い込むようになるので、この食い込み作用によってタブ状端子２０は、より確実に保持される。   Further, the front end portion of the press-fitting portion 21 is a biting portion 28 that is inclined so that the left and right side edges thereof become narrower toward the front, and the front end portion of the press-fit hole 16 has its left and right inner surfaces on the front side. The angle formed by the left and right side edges (tapered edge 26A) of the bite portion 28 is smaller than the angle formed by the left and right inner side surfaces of the receiving portion 17. It is said. According to this configuration, since the biting portion 28 bites into the receiving portion 17 in a state where the press-fitting is completed, the tab-like terminal 20 is more reliably held by this biting action.

また、圧入部２１の左右両側縁に、圧入方向に間隔を空けた三対の略三角形状をなす突起２５Ａ，２５Ｂ，２５Ｃを形成し、これらの突起２５Ａ，２５Ｂ，２５Ｃが圧入孔１６の内側面に食い込むので、圧入されたタブ状端子２０は確実に抜止めされる。
また、圧入部２１の左右両側縁に沿って三対の突起２５Ａ，２５Ｂ，２５Ｃの突出端を結んだ線が、前方に向かって間隔が狭まるような形態をなし、この突起２５Ａ，２５Ｂ，２５Ｃを有する圧入部２１が、全体として前端側が幅狭となるようなテーパ状をなしている。これにより、圧入初期における圧入抵抗が低減される。 Further, three pairs of substantially triangular projections 25A, 25B, and 25C that are spaced apart in the press-fitting direction are formed on the left and right edges of the press-fitting portion 21, and these projections 25A, 25B, and 25C are formed in the press-fitting hole 16. Since it bites into the side surface, the press-fitted tab-like terminal 20 is reliably secured.
Further, a line connecting the projecting ends of the three pairs of protrusions 25A, 25B, and 25C along the left and right side edges of the press-fitting portion 21 has a form in which the interval narrows toward the front, and the protrusions 25A, 25B, and 25C. The press-fit portion 21 having a taper shape with a narrow front end side as a whole. Thereby, the press-fit resistance in the initial press-fit is reduced.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施態様も本発明の技術的範囲に含まれる。
（１）ハウジングには、位置決め孔を形成せず、圧入孔の前端がハウジングの前面に臨む形態としてもよい。
（２）圧入部の前端は、台形状ではなく、前端縁が圧入方向と直角な方形であってもよい。
（３）圧入孔の後端の最大幅は、台形部の幅よりも大きい寸法であってもよい。
（４）食い込み部の左右両側縁のなす角度は、受け部の左右両内側面のなす角度より大きい角度であってもよい。
（５）圧入孔の前端部にテーパ状の受け部を形成せず、圧入孔の前端と位置決め孔とが段差状をなしていてもよい。
（６）突起の数は、二対以下でも、四対以上でもよい。
＜参考例＞
（１）圧入部の左右両側縁が、突起を有せずに、直線状である形態が考えられる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) A positioning hole may not be formed in the housing, and the front end of the press-fitting hole may face the front surface of the housing.
(2) The front end of the press-fit portion may not be trapezoidal but may be a square whose front end edge is perpendicular to the press-fit direction.
(3) The maximum width of the rear end of the press-fitting hole may be larger than the width of the trapezoidal portion.
(4) The angle formed by the left and right side edges of the biting portion may be larger than the angle formed by the left and right inner surfaces of the receiving portion.
( 5 ) The tapered receiving portion may not be formed at the front end of the press-fitting hole, and the front end of the press-fitting hole and the positioning hole may have a stepped shape.
( 6 ) The number of protrusions may be two pairs or less, or four pairs or more.
<Reference example>
(1) A form in which the left and right side edges of the press-fit portion are straight without having protrusions is conceivable.

実施形態１のハウジングの水平断面図Horizontal sectional view of the housing of Embodiment 1 ハウジングの正面図Front view of housing ハウジングの背面図Rear view of housing タブ状端子の平面図Top view of tab-shaped terminal タブ状端子の圧入を開始した状態をあらわす水平断面図Horizontal sectional view showing the state where press-fitting of tab-shaped terminals has started タブ状端子の圧入の途中の状態をあらわす水平断面図Horizontal cross section showing the state during the press-fitting of tab-shaped terminals タブ状端子が圧入されている状態をあらわす水平断面図Horizontal sectional view showing the state where the tab-shaped terminal is press-fitted タブ状端子が圧入されている状態をあらわす縦断面図Longitudinal sectional view showing the state where the tab terminal is press-fitted

符号の説明Explanation of symbols

１０…ハウジング
１５…位置決め孔
１６…圧入孔
１７…受け部
２０…タブ状端子
２１…圧入部
２２…タブ状接触部
２５Ａ…第１突起
２５Ｂ…第２突起
２５Ｃ…第３突起
２８…食い込み部 DESCRIPTION OF SYMBOLS 10 ... Housing 15 ... Positioning hole 16 ... Press-fit hole 17 ... Receiving part 20 ... Tab-shaped terminal 21 ... Press-fit part 22 ... Tab-shaped contact part 25A ... 1st protrusion 25B ... 2nd protrusion 25C ... 3rd protrusion 28 ... Biting-in part

Claims (4)

前後方向の圧入孔を有する合成樹脂製のハウジングと、
前端部に細長いタブ状接触部を有し、前記タブ状接触部の後端に前記圧入孔よりも幅広の圧入部が連なった形態のタブ状端子とを備え、
前記タブ状端子が、前記圧入部を後方から前記圧入孔に圧入させることで、前記ハウジングに保持されているコネクタにおいて、
前記圧入孔は、内壁面が前記圧入部によって拡幅変形させられる圧入領域を有しており、
前記圧入領域は、その前端から後端に向かって次第に幅広となるようなテーパ状をなしており、
前記圧入部の左右両側縁には、圧入方向に間隔を空けた複数対の略三角形状をなす突起が形成され、
前記複数の突起は、前記圧入部の左右両側縁に沿って前記複数対の突起の突出端を結んだ線が、前方に向かって間隔が狭まるようなテーパ状の形態であり、
前記複数対の突起の突出端同士を結んだ一対の線のなす角度は、前記圧入領域における左右両内側面のなす角度よりも大きく設定され、
前記複数対の突起のうち最前端に位置する一対の突起の突出端間の幅寸法は、前記圧入領域における後端の最大幅寸法より大きい寸法とされていることを特徴とするコネクタ。 A synthetic resin housing having front and rear press-fit holes;
A tab-like terminal having a long and narrow tab-like contact portion at a front end portion, and a press-fit portion having a width wider than the press-fit hole at the rear end of the tab-like contact portion;
In the connector held by the housing, the tab-like terminal press-fits the press-fit portion from the rear into the press-fit hole.
The press-fitting hole has a press-fitting region in which an inner wall surface is expanded and deformed by the press-fitting portion,
The press-fitted region has a tapered shape that becomes gradually wider from the front end toward the rear end ,
On the left and right side edges of the press-fit portion, a plurality of pairs of substantially triangular projections spaced apart in the press-fit direction are formed,
The plurality of protrusions have a tapered shape such that a line connecting the protruding ends of the plurality of pairs of protrusions along the left and right side edges of the press-fitting portion is narrowed toward the front.
The angle formed by the pair of lines connecting the projecting ends of the plurality of pairs of protrusions is set to be larger than the angle formed by the left and right inner surfaces in the press-fitting region,
The connector characterized in that the width dimension between the protruding ends of the pair of protrusions located at the foremost end among the plurality of pairs of protrusions is larger than the maximum width dimension of the rear end in the press-fitting region . 前記ハウジングには、前記タブ状接触部を嵌合させることで前記タブ状接触部を幅方向において位置決め可能な位置決め孔が、前記圧入孔の前端に連なるように形成されていることを特徴とする請求項１記載のコネクタ。   In the housing, a positioning hole capable of positioning the tab-shaped contact portion in the width direction by fitting the tab-shaped contact portion is formed to be continuous with a front end of the press-fitting hole. The connector according to claim 1. 前記圧入部の前端部は、後方に向かって幅広となるような台形状に形成されており、
前記圧入孔の後端の最大幅が、前記台形状の前端部の幅よりも小さい寸法とされていることを特徴とする請求項１又は請求項２記載のコネクタ。 The front end portion of the press-fit portion is formed in a trapezoidal shape that becomes wider toward the rear,
The connector according to claim 1 or 2, wherein a maximum width of a rear end of the press-fitting hole is smaller than a width of the trapezoidal front end portion. 前記圧入部の前端部は、その左右両側縁が前方に向かって幅狭となるように傾斜した食い込み部となっており、
前記圧入孔の前端部は、その左右両内側面が前方に向かって幅狭となるように傾斜した受け部となっており、
前記食い込み部の左右両側縁のなす角度が、前記受け部の左右両内側面のなす角度よりも小さい角度とされていることを特徴とする請求項１ないし請求項３のいずれかに記載のコネクタ。 The front end portion of the press-fit portion is a biting portion that is inclined so that the left and right side edges thereof become narrow toward the front,
The front end portion of the press-fitting hole is a receiving portion that is inclined so that both left and right inner side surfaces become narrower toward the front,
4. The connector according to claim 1, wherein an angle formed between the left and right side edges of the biting portion is smaller than an angle formed between the left and right inner surfaces of the receiving portion. 5. .
JP2007286011A 2007-11-02 2007-11-02 connector Expired - Fee Related JP5115149B2 (en)

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JP2007286011A JP5115149B2 (en) 2007-11-02 2007-11-02 connector
EP08018752.9A EP2056410B1 (en) 2007-11-02 2008-10-27 An electrical connector
US12/262,347 US7722413B2 (en) 2007-11-02 2008-10-31 Electrical connector with reduced press-in resistance for terminals
KR1020080107586A KR101038036B1 (en) 2007-11-02 2008-10-31 A connector
CN2008101704196A CN101425639B (en) 2007-11-02 2008-11-03 Connector

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